Valverde, J. S.Pimentel, B. M.Fainberg, V. Y.2014-05-202014-05-202004-07-01Theoretical and Mathematical Physics. New York: Consultants Bureau, v. 140, n. 1, p. 931-938, 2004.0040-5779http://hdl.handle.net/11449/23060Using the functional integral formalism for the statistical generating functional in the statistical (finite temperature) quantum field theory, we prove the equivalence of many-photon Greens functions in the Duffin-Kennner-Petiau and Klein-Gordon-Fock statistical quantum field theories. As an illustration, we calculate the one-loop polarization operators in both theories and demonstrate their coincidence.931-938engstatistical field theoryphoton Green's functionspath integralrenormalizationequivalencyArtigo10.1023/B:TAMP.0000033030.16839.baWOS:000223573800004Acesso restrito